Fastener-applying implement



Feb. 2, 1943, Y i y A, H, MAYNARD v9,309,778 I FASTENER-APPLYING IMPLEMENT Filed April. 2, '1941 2 Sheets-Sheet 1 Feb. 2, 1943.

A. H. MAYNARD FASTENER-APPLYING IMPIJE'MENT` 2 sneetsfsheef '2 Filed April 2, 1941 this previously used time zine-arm isV movable ireelywith respect to tlie'. base, rendering it awkward to handle'the-iin it up. Toload,

v magazine-arm to permit throughthe open `top ingi operation the fastener-applyingv leveris inadvertently or when arm, and presses the fastener-applying lever'to-f .ward the magazine-arm Y results in causing-'a fastener to means operative between ment toward each other Patented Een 2, 1943 cembe'r 2, 1941, and relating use in attaching papers and ing tags and labels to articles for use generally for fastening and'rstitchlngto- 1 getheri variousobjects and articleaj The fastener-applying implement' and described in my priori application, to above, comprises a-baSe. a magazine-armena these elements a fastener-applying lever pivotally connected with',

moment, for example, in picking,

H. Maynard,

United 'States December 322, issued Deof commerce and for relative movement. Withof implement the magathe implement with a suppl! 0 1 fasteners the fastener-applying lever is swung away'from ftenertdbe supplied? of the arm.j: After a load-xv swung back into operative position above the magazine-arm.' It sometimes ever, that the operator or Ythe happens) implement lifts movement away from the base:

the magazine-arm away from thej base,'either loading while the latter the magazine-g' f between the foreiinger and thumb. Such n n'- `warranted o'careless handling priori applicationl'ias a more or in that it is only adapted for applying installers 1 ofa' certairji size which 'mensions to adapt' them plate atthe mustbe t0 Pa rear of the throat.-

- One o! the oifthe implement be driven intof 35 Fig. 4 is a viewsimilar the thumb. Thein'ipleme'nt disclosed in my' less limited i188 of accurate dlover the shear- 40 objects or the present invention'- y.iii to provide reconstruction and arrangement of the parts oi the implement to restrain movement handle and also prevent insertion tween the arm and base.

Another object ofthe inventionisto provideor the magazinearm away from the base whereby to render it easier to theV implement an' implement of the typeindicated with 'detent lever and magazine-arm to arm when the latter Vliftedabove its normal raised position with respect to the hase.

n Aimplement of Another object is toprovide a to close the the fastener-applying prevent their movemagaz'rlnef-,canc ammonium Warwick. BJ.. nWireStitcher Oomparmw a, serial No. 38am 110 illustrated.

referred "wand theend'oi of the thumb the -tm mdictedin whichthe on the magazine-arm when above the hase and the base when the magazine-arm is moved to la position adjacent the-base Y the type indicated-with an in `rear of the shear-plate for guidng from themagazine to the they are driven to adapt with fasteners having Further objects. ofthe- .in the 'following specipa the fasteners 137-. by Way oi example, `as illustrated by ac Panmdrwinss.p 1n-the f 1F13: .1 is iii-r perspective tures 'of the present inventiomfifa 1 fulfil-6 Fis. 2"is`^a side elevational view lutins sprins for 'the tion the fastener-applying' detente 'onthe stachions of straining the e-arm from and arm to close'the amis raised away-from the' base; to Fig. 3

j magazine-arm' as. 'rocked top orthe stanchions on thebase;

VI"i|i.5 is aview similar to Fig. ishowlns end ofthe lifting spring the ' 'zine-arm by its engagement with onthebase: i

magazinearm lying `the staples Fig- 'l is a transverse line 1-'1..of Fig. 6 showing the'conlcal endo! 50 the bracing strut which has 'its periphery in' alinement with the upper edge ofthe shearvplate;A ,A Fig. 8 is a longitudinal sectional view taken on r line 8-8 of Fig. 6 showing the ramp formed by "5 the conical end of the bracing strut lor guiding adjacent the shear-plate:

lifting spring isengaged bya latchins the latter is raised vthegendot the uiting spring 1 released by engagementwith the stanchions on l 'Y 'Another object :sto -pxovideon impiemeot 'or y ramp at the throat through which Y implement Iorse lees cf dii!erent t invention are setiorthj on-whlch-descrlbes a.. preferred form of constructionoi the'inventl'on.

view: ori cj.' M applying implement incorporating the novel les lever. mmgine-arm and 25" in theiroperative Vrelationshipand the friction the base yfor re-4 abnormal i, 2 showing the s -30 end of the lifting spring on the operating lever engaging the detent-shouldetson the magazine-v arm to preventv relative movement of the lever latter vwhen the masazineshowingthe toward the baseby' gepressureappliedto the fastener-applying lever' i the lutins spring engaging the releasedrironi me ment with the Ydetentshoulders on the masi-1 the stanchions rig. cis spion vieiv` of no forcord'enc ortho'A showing the holddown luss overseotionoi viewftskeo'o plate;

Aune s-s er Fig. 2 snowing the inward inclinal Fig. iozis trensverse taken en line iL-II oili'ig. 3 -showing the endo! the littders on the magazine-arm to torce-the latter bi',` tween the friction line I I ii of Fig. 4 showing the end ofthe lifttent-shoulders on 4the magazine-arm.

- and clinching U-Shaped staples, but it i8 to be grooves il `ai; one end and is provided with up-f ff rightl spaced stanchionsiZ-at its pllitezend deril.'

--ing s bottom' wan n andlspaeedsideiwsu'e |1-v nieren by .meanest eneasanent 01.-- the ends' vl is positioned between the upright spaced 3mi', i -chions I2 on'thebase i and hingedly mounted.'l

o the stanchions and the side walls i1 4oi'the magii.- i

z for movement toward and away from.

arm l'has its bottom wall Ili'olded upwardly'to l provide s shear-plate il. soca.1led, andthe ends fil l oi its side walls I1 arefolded inwardly in spaced relation to the shear-plate to provide fa throat il therebetween. A strut 20 has its rearward end L .-"nis'gazinearm lare cnt wa'yto provide recesses Ysirunnin);engineers"lizueiovsrtheir'upper edges.

for cooperation' y with fthe'jinwardly extending 1f edges oithe d etenttab's .y-llis-shownI in Figs? f' '9, the'invvarci edges ofthe detents. Il engage the if lshoulders Il. 'to limitgtheupwardmovement'of ably mounted on the strut 20 and urged for-L the magazine-arm l andthe arrangement of the I of an opening 26 in the bottom wall oi.' the maga- 2, D scams the fasteners anto the 'nppe'redge of me sneer Fig. 9 is' a'trsnsverse sectional view taken `on' close the magazine-ann` as described in detail o! the magazine-arm. is'alsoprovided witha viatemiiy extending latching shoulder u.

The fastener-applying lever. 1 is of inverted tion oi' the detenta on the stanchions of the base for frictionally holding the magazine-arm against. abnormal movement away from the b Y E v v ing spring in engagement with the detent-shoul- 'detenta-on .the stanchions ot the besef. a of the depending sides of the fastener-applying Fig. -11 is-a transverse sectional view taken on 15 tending latching shoulder Ii adapted to underlie ing spring engaged with the stanchions on the Y the latching shoulder 24' which projects laterally base to release itirom engagement with the de'-` upon rocking movement 'o1' the fastener-applying In the accompanying drawingsv the invention 2o 'is illustratedv as applied to a device 'for' driving lever 1 from the raisedpositionillustrated in Pig.

understood that the implement may be used to -rearwardend of the latch-plate engages the inpply other forms of fasteners. H'As-previously stated, the implement illustrated and described 25 herein is generally similar to thatdisclosed in 'inwardly directed shliulder-.Si to underlie the" my prior copending application, Serial No,-245 ,j 'a 105, now Patent No. 2,264,322, issued December `latching shoulder Months magazine-arm."

2, 1941, referred to above. Sumce lit testate A herein 'that the implement comprises an auxilso lary basev 2 or generally rectangular lform on v end sc i'ormed as toprovide'afdriver 3l forrecipwhich a fastener-applying device 3 is detachahiy. mounted by means otjsnap- !astening means 4.

The fastener-applying implement l A.:ompl'ises a base lwhich nts into a recess lin the-auxiliary.`

' .The free length oi thefresilient element l! is its rear-wurd end to engage the' upper edges '0f the side walls-o! the` mngazinesarm t andaiso ing-lever 1. The base tot the' fastener-applying vthe upper edles-ofthe ltanchions I2 on the base device 3' supports an anviL Il with clincher trinin normal spaced relation to the magazine The forwardiedge of one-offthestanchionsii2 has aninclined cam 'face Il and a Shillin- -with'its end riveted tosecure the parts in assemte Aadapt u-shaped staplesS. :to be supportedv l plement is substantially identical with that illus- Y .trated and or their legs with the bottom wan orme srmi@ plicatiom and the sides uil their legs 'withthe side'v thereof. The rearward end of the magazine-arm .ifrictional detent-means ll are--provided-on the on a pivot-pini! extending transversely through'g,

. `avvaygfrony the base beyond 4'its normal range-oi zine-arm. The magazinemrm l is thus' mounted y "ss thehase I. At its forward end' the magazine seated in a recess 1| in the pivot-pin II audits forward end abutting the rearward face-o! the shear-plate I l 4i'or bracing the latter against 65 movementrearwardlm i;

The staples S are advanced longitudinally of the magazine-arm 6 b] means of a pusher 22 slidwar'dly by means of a coiled spring 23 encircling 70 the strut. 'Ihe pusher 22 is provided with a de' pending detent-lip 25 engageable with the edge detentsand shoulders is such that when engaged the upper edges of 'the sidewalls I1 of the magazine-arm are in substantial alinement with the upper edges of the stanchions I2. The detenttabs 40 are adapted to yield to permit the' magazine-arm 8 and fastener-applying lever 1 to be zine-arm 6, see Figs. 2 and 3. to latch it in retracted position; and the pusher has rearwardly 75 214f'or tilting it to'relesse it I' when the fastener-applying ie'ver 1 is swimgto in my prior application. One of the side walls channel-shape and of such width esto 'adapt :itsv depending -ilanges'to straddle the 'stanhions 11j on 'the base'. lever 1 is pivotally mountedV i on the ends of the pivot-pin l! projecting lster- -allyirom the stanchions l2 andthroilgh theside. flanges' ofthe lever. Blidably mounted on one *lever 1 is a latch-plate having an inwardly ex from the magazine-arm l. The construction and arrangement of the slidabl'e latch Il is such that 3 to the closed position illustratedin Fig. 1' the clined camfe il Vstanchion il'oi the 'base'to slide it iorwanilm whereby to cause its a @..nresment eiement'su-nze rormjors las A. springis mounted'onrthe imderside' ofthe tastener-applying lever 11nd a 4'right-angular ymention in the tnff.- no: meneame-arm generally `cuxfvedas illustrated in Fig. 3 to adapt' to ho1dthe 'ma'gainearm in norinsl4 spaced `'irelation to the base'flnd the fastener-applying sirio ,see 2.-.' A knob er" anger-pues. is mounted on the forward of thefastenerf if applying arm 1 a studi! projecting ff fthrough their-m' and element 32' biedsreiauonsmp.- 'As thus maescribea the :m-

describes ingnypriereepenmng sp; i .jf; "."In"acco'rdance 'with' thef '-inventioni,

summons i: .or the, einer reiensuring the" 'magai".ine'a'r1n= l to restrain "it against movement action lwhere'byto guard' against insertionoi the` operators izhumhox'` linger in under the throat 1 l. I 'he detenta 4B areintheii'orm of--angulartabs- 'at the 'forwarduppercorners of the stanitghionsj- H iz, seein-lgs; 2510.551 une" decent-tabs u sre i; fomed -by bendmg fche opper forward ecm of o the` stnnf'zhion's` i! -inwsrdlyin'theinanner indi- -:cated-in-Figa Q'an'd 10J. aThesidewallsof the in thethroat'l. 'The s tapleB orother fastener will thus bezdrlvenrthrouh the work and the.l

ends otite legs clinched y bv engouement with. the grooves" inmganvnglv d The upward mevenenc orme mmanine-arm fc 1 v is normally ,restrained bythe engagement ofthev scares f l ing a normal range of movement with. respect to the base. a fastener-8.9111371113 levermovablo I toward Athe magazine-arm to drive fasteners therefrom'and away from the magazine-arm. to

open the latter to receive a supply of fasteners,

detent-means operative between the magazinearm and fastener-applying'lever to'prevent' their movement toward each other when the magazinearm' is above its raised position withrespect to the baser and meansforfreleasing the dotant-means'upon movement of the magazine: arm to itsnormal position'y above the base.v

shoulders at the bottom o f th'reoemes M inf the sidesof the If* the magazine-arm] is 10 t0 Vthe position illustrated-ln F18. 11H j 3 againstfthe'action of the frlctiondetents` Il 1 and the-fastener-appLving arm 1 reieasedfroxn 4..I n a deviceot typeindicated'rf' base.; the magazine-arm, the free enduof the g va magannarm mounted lfor: movement foward ent elementi-.hereafter will actagainst 1,5 vand `away from, Athe base and .having en openjl faces naat the rear of the reoemes ll to prevent, j side extending longitudinally thereof, said magarelative movement of the parts toclosethe magy 'sine-arm having anormal range of movement ezine-arm., With this arrangement ofthe with respect to the base, 'alever movable .rela- 'a force applied on theknob 35 of theIastener-sY tively or the magazine-armfor closing theopenA epplyng'arm In will cause the magazine-Farm to 20 side thereof, a driverzoperable 'bythe lever. said be 'moved toits normal position with respect to lever beine movable iowaxdthe magazine-arm i. the base l asT the end ll'of the resilient element t0. drivefasteners therefrom and away 'flmthd 32 rides lalong theupper edges of thestanchions j magazine-arm to open the latter 4to ,receive e. |21. The parts, of the implement erethu's re 4mainly-0i.' fasteners, detent-mean'operative beturned to operative relationship before a staple 25 tween the lever and magazine- 8m t0 Pfeilen# can be. driven, this provision guarding against in-` jury to 4the operators hand by drivinga staple 1 linto the thumb orilnger held under the arm i.:

ing .the detent-mean-Y upon movement of the It will be observed from the 'foregoing speciilcation that theipresent invention. provides a. 3osafety'- feature for fastenerapplying implements" of thevpresent type. It will also be observed that movement of the lever. toward themagazine-arm when the arm'is above its normal raisedpositicm with respect to the base, and means for releasmagazine-arm to its' normai, operative positionm 551m'. a. device of the'tvpe indicated@ ya 'magazine-arm mounted for A movement toward thepresent invention provides novel means for. f th b, h f guiding me fasteners-to the. throat ufzh ,ild Wfydiwnll im ase-@g1 miga-lh, over!4 t whichA they are drivento adapt the implementto u 's e exten ng ons i dimly e' er maga" f .l :nine-arm havinga normal range oi movement I lgving legs-0 1 'Magni --j with .re.spect.to` the base. a lever movable relaf' mm1-w .weiem een@ me T1-i ."1 "d bed it* be. e "the lever; a. resilient velement carried bythelethat modifications may be made in the structure e ver4 and engageablewlth the magazine-amend 28nd of th? P arts therwf mmm. basev for holding the 'lever raised'with respect to departingfifrom the spirit or scope of. the-inven-:-

u the magazine-arm and themagazine-armraised n l fmf`:'1}1ersfvre. without limiting niyselr 1 9 this with respect te. the .baseren rennent velementA respect'cla'im, l f' `45`operating between-the lever'andthe magazine- 1 .1 11,13* GWW-01u19 type indicated' a basei armto' prevent movement vof thelever toward a magazine-arm mounted'for movement toward A l themagazmm .when-the a-rmis msednbove d im@ Wa? fmm'the base fastnerapplymg means` itsv normalv operative position with respect tothe. mound ffm'- .movement on the magazine'a'm base, and meanson the base for releasing the tb'dv? fasteners therefrom-5.92m magazme'am 50 resillentelement upon movement of the maga-g having-a normal range of movement' with respect zine-arm to .its normal operative position above A tothe baSeanddetentemeans operative between mangel d d Z th@ magazine-arm and fastener'appkmg mem In' a, device 'ofthe tvpe indicated.l albasefa to prey-815mm femme movemenr-towadlegn f" magazine-arm mountedA :forfmovement toward e zhymfhe magam oam is@ xvmsedtm t l5 away the base and having an open side I' @@Wwt-WPo?? c 9u- 'xtendinglongitudmeny' mer-eer, seid magazine-.

hvinga normalrange-of movement for tward 'respect to the base, a lever movable relativelvof l *andawayfromthe basefastenera17plying means' l the magazine-arm .for Closing the Open Bide Phew mountedv for movementon the magazine-arm tow 0f' 5 mment Siemen? 0n' the level havin? De -f end formed as a driver and its opposite free end ""'th efr am um wie www ed me e spe't w thebassi detenpmeans operative be; *il hold the lever raised with respect to the maga a f tween the magazine--arm and fastener-applying 65 Zine-arm and the arm raxsedrwit-hrespect to the A means w prevent their relative nmvemengm..4 base, saidlever being movable'toward the maga- A l wud each otheryhenlthemagazmmarm is raised zine to drive fasteners therefrom and away from' i,A beyond its vnormal"A operative position with -ref the magazine to open the latter to receive a supspect tov the and means for releasingthe 'Ply 0f fasteners throughV its open side, the free detent-means upon "movement of thev magazine-' mend of said resilienty element engaging the magaarm. to 'its 'normaloperative position above the zine-arm to prevent movement of the lever to- M g ward the magazine-arm to close the latter when 3. In a, device-of' the typeindicated, a base,- it isabove its normal raised position with respect a magazine-arm mounted Vfor movement `toward to .the base, and meam on the base for releasing and away from the base, said magazine-arm hav- 75 the free end of the resilient element'upon moveas a stacker, e, fastener-applying lever movable toward the magazine-arm to drive fasteners fed therefrom and movable away fram the magazinearm to open the latter to receive a supply of fasteners, and a second datent-means operative between the magazine-arm and fastener-applying lever to prevent their movement toward each other to close the magazine when the magazinearm is raised above lts normal range of action 10 with respect to the base.

ARTHUR H. MAYNARD. 

